Rockwell Automation LP30/40/50 and BM40 Operator Interface

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1. EXECUTIVE SUMMARY CVSS v3 8.8 ATTENTION: Exploitable remotely/low attack complexity Vendor: Rockwell Automation Equipment: LP30, LP40, LP50, and BM40 Operator Panels Vulnerability: Improper Validation of Consistency within Input, Out-of-bounds Write, Stack-based Buffer Overflow, Untrusted Pointer Dereference
2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an authenticated attacker to use specifically crafted communication requests to perform a denial-of-service condition, memory overwriting, or remote code execution.
3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Rockwell Automation products are affected: LP30 Operator Panel: Versions prior to V3.5.19.0 LP40 Operator Pane: Versions prior to V3.5.19.0 LP50 Operator Panel: Versions prior to V3.5.19.0 BM40 Operator Panel: Versions prior to V3.5.19.0 3.2 Vulnerability Overview 3.2.1 IMPROPER VALIDATION OF CONSISTENCY WITHIN INPUT CWE-1288 After successful authentication, specifically crafted communication requests with inconsistent content can cause the CmpFiletransfer component to read internally from an invalid address, potentially leading to a denial-of-service condition. CVE-2022-47378 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). 3.2.2 OUT-OF-BOUNDS WRITE CWE-787 After successful authentication, specifically crafted communication requests can cause the CmpApp component to write threat actor-controlled data to memory, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47379 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H ). 3.2.3 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpApp component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47380 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.4 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpApp component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47381 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.5 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47382 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.6 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47383 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.7 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47384 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.8 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47386 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.9 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47387 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.10 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47388 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.11 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47389 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.12 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpTraceMgr component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47390 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.13 STACK-BASED BUFFER OVERFLOW CWE-121 After successful authentication, specifically crafted communication requests can cause the CmpAppForce component to write threat actor-controlled data to stack, which can lead to a denial-of-service condition, memory overwriting, or remote code execution. CVE-2022-47385 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.14 IMPROPER VALIDATION OF CONSISTENCY WITHIN INPUT CWE-1288 After successful authentication, specifically crafted communication requests with inconsistent content can cause the CmpApp/CmpAppBP/CmpAppForce components to read internally from an invalid address, potentially leading to a denial-of-service condition. CVE-2022-47392 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). 3.2.15 UNTRUSTED POINTER DEREFERENCE CWE-822 After successful authentication, specifically crafted communication requests can cause the cmpFiletransfer component to dereference addresses provided by the request for internal read access, which can lead to a denial-of-service situation. CVE-2022-47393 has been assigned to this vulnerability. A CVSS v3.1 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: United States 3.4 RESEARCHER Rockwell Automation reported these vulnerabilities to CISA.
4. MITIGATIONS Rockwell Automation recommend users using the affected software to apply the risk mitigations, if possible: Upgrade to CODESYS version 3.5.19.2 which has been released to mitigate these issues. Additionally, we encourage the user to implement our suggested security best practices to minimize risk of the vulnerability. Users can use Stakeholder-Specific Vulnerability Categorization to generate more environment-specific prioritization. Additional information can be found in the CODESYS Advisory. CISA recommends users take defensive measures to minimize the risk of exploitation of this these vulnerabilities, such as: Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. No known public exploitation specifically targeting this these vulnerabilities has been reported to CISA at this time.
5. UPDATE HISTORY January 30, 2024: Initial Publication